[특허]Method of manufacturing a spar for a wind turbine from elements having end portions extending transversely to an intermediate portion

Vestas Wind Systems A/S

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특허 상세정보

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Method of manufacturing a spar for a wind turbine from elements having end portions extending transversely to an intermediate portion

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F03D-011/00 B29C-070/88 B25B-011/02 B29C-065/48 B29C-065/50 B29C-065/78 B29C-065/00 B29D-023/00 F03D-001/06 B29K-063/00 B29K-067/00 B29K-101/10 B29K-101/12 B29K-105/06 B29K-307/00 B29K-309/08 B29K-311/10 B29K-311/14 B29K-707/04 B29K-709/08 B29L-022/00 B29L-023/00 B29L-031/00 B29L-031/08
미국특허분류(USC)	416/226; 029/889.72
출원번호	US-0999171 (2009-06-19)
등록번호	US-8899936 (2014-12-02)
우선권정보	DK-2008 00850 (2008-06-20)
국제출원번호	PCT/EP2009/057683 (2009-06-19)
§371/§102 date	20110708 (20110708)
국제공개번호	WO2009/153342 (2009-12-23)
발명자 / 주소	Hancock, Mark Hedges, Andrew Vronsky, Tomas
출원인 / 주소	Vestas Wind Systems A/S
대리인 / 주소	Wood, Herron & Evans, LLP
인용정보	피인용 횟수 : 2 인용 특허 : 6

초록
▼

The invention provides a method of manufacturing a spar for a wind turbine blade. The method includes providing at least two caps, each cap forming an intermediate portion between two end portions, where the end portions each forms a cap joint surface portion along a longitudinal extending edge of the end portion and the intermediate portion forms an outer surface portion of the spar, providing at least two webs, each web being provided with web joint surface portions along opposite and longitudinally extending edges, and connecting the joint surface portions of the caps with the joint surface portions of the webs to form a tubular configuration of the spar. The caps are provided so that the end portions extend transversely to the intermediate portion and the caps are arranged relative to each other so that the end portions of one cap extend from the intermediate portion towards the end portions of another cap.

대표
청구항
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1. A method of manufacturing a wind turbine blade having a suction side and a pressure side and a spar disposed between the suction side and the pressure side, the method comprising: prior to assembly, providing at least two caps, each cap forming an intermediate portion between two end portions, where the end portions extend transverse to the intermediate portion and form a cap joint surface portion along a longitudinal extending edge of the end portion and the intermediate portion forms an outer surface portion of the spar,prior to assembly, providing at least two webs, each web being provided with web joint surface portions along opposite and longitudinally extending edges,assembling the spar by arranging the caps relative to each other so that the end portions of one cap extend from the intermediate portion towards the end portion of another cap;connecting the joint surface portions of the caps with the joint surface portions of the webs to form a tubular configuration of the spar; andorienting the spar relative to the wind turbine blade such that the intermediate portion of at least one cap confronts or forms part of the suction side of the wind turbine blade. 2. The method according to claim 1, wherein the caps are arranged relative to each other so that a predefined distance is formed between the outer surface portions of the caps prior to the step of connecting the joint surface portions of the caps with the joint surface portions of the webs. 3. The method according to claim 1, wherein the webs are provided as substantially flat panels. 4. The method according to claim 1, wherein the caps are provided so that an angle between the end portions and the intermediate portion may vary under elastic deformation of the caps. 5. The method according to claim 1, wherein the intermediate portions and the end portions are provided so that they comprise different materials. 6. The method according to claim 1, wherein the webs and caps are provided as laminated elements by moulding of at least one type of fibre material and at least one type of resin in individual moulds. 7. The method according to claim 1, further comprising a step of applying an adhesive to at least one of the joint surface portions and a step of curing said adhesive. 8. The method according to claim 1, wherein the caps and webs comprise an assembly marking facilitating positioning of the caps and webs relative to each other. 9. The method according to claim 1, further comprising a step of providing an assembly tool, and a step of arranging the caps and webs herein prior to the step of connecting the caps and webs. 10. The method according to claim 1, further comprising a step of assembling the webs from a plurality of web elements. 11. The method according to claim 1, further comprising a step of providing a short circuit in each of the caps, the short circuits connecting the caps electrically to facilitate lightning protection of the blade. 12. The method according to claim 1, further comprising a step of attaching a stiffening element to at least one of the caps, the stiffening element being arranged to increase a stiffness of the spar in the longitudinal direction. 13. A wind turbine blade having a suction side and a pressure side and a spar disposed between the suction side and the pressure side, the spar having a tubular structure and being assembled from at least two caps and two webs, the caps each forming an intermediate portion between two end portions, where the end portions extend transverse to the intermediate portion and form a cap joint surface portion along a longitudinal extending edge of the end portion and the intermediate portion forms an outer surface portion of the spar, and the webs each having web joint surface portions along opposite and longitudinally extending edges, where the joint surface portions of the caps are connected to the joint surface portions of the webs at locations spaced from the intermediate portions of the caps, where the end portions of one cap extend from the intermediate portion towards the end portions of another cap, and where the spar is oriented relative to the wind turbine blade such that the intermediate portion of at least one cap confronts or forms part of the suction side of the wind turbine blade. 14. The wind turbine blade according to claim 13, wherein the caps are arranged relative to each other with a predefined distance formed between the outer surface portions of the caps before the joint surface portions of the caps are connected with the joint surface portions of the webs. 15. The wind turbine blade according to claim 13, wherein the webs comprise substantially flat panels. 16. The wind turbine blade according to claim 13, wherein an angle between the end portions and the intermediate portion may vary under elastic deformation of the caps. 17. The wind turbine blade according to claim 13, wherein the intermediate portions and the end portions comprise different materials. 18. The wind turbine blade according to claim 13, wherein at least one of the webs comprises a plurality of web elements. 19. The wind turbine blade according to claim 13, further comprising a short circuit in each of the caps, the short circuits connecting the caps electrically to facilitate lightning protection of the blade. 20. The wind turbine blade according to claim 13, further comprising a stiffening element attached to at least one of the caps, the stiffening element being arranged to increase a stiffness of the spar in the longitudinal direction. 21. The wind turbine blade according to claim 13, wherein the end portions of one cap are in non-overlapping relationship to the end portions of another cap. 22. The wind turbine blade according to claim 13, wherein the end portions of one cap are coupled to the end portions of another cap only through a web. 23. A spar for a wind turbine blade, the spar having a tubular structure and being assembled from at least two caps and two webs, the caps each forming an intermediate portion between two end portions, where the end portions each forms a cap joint surface portion along a longitudinal extending edge of the end portion and the intermediate portion forms an outer surface portion of the spar, and the webs each having web joint surface portions along opposite and longitudinally extending edges, where the joint surface portions of the caps are connected to the joint surface portions of the webs at locations spaced from the intermediate portions of the caps, wherein at least one of the webs comprises at least two adjacent web elements with interfaces not being connected to each other, and wherein the caps extend continuously between the at least two adjacent web elements. 24. A blade for a wind turbine comprising a spar according to claim 23. 25. The spar according to claim 23, wherein the end portions of one cap are in non-overlapping relationship to the end portions of another cap. 26. The spar according to claim 23, wherein the end portions of one cap are coupled to the end portions of another cap only through a web.

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이 특허를 인용한 특허 피인용횟수: 2

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Method of manufacturing a spar for a wind turbine from elements having end portions extending transversely to an intermediate portion

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Method of manufacturing a spar for a wind turbine from elements having end portions extending transversely to an intermediate portion

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이 특허에 인용된 특허 (6)

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